<button class="Btn">
   <svg fill="white" viewBox="0 0 512 512" height="1.2em"><path d="M459.37 151.716c.325 4.548.325 9.097.325 13.645 0 138.72-105.583 298.558-298.558 298.558-59.452 0-114.68-17.219-161.137-47.106 8.447.974 16.568 1.299 25.34 1.299 49.055 0 94.213-16.568 130.274-44.832-46.132-.975-84.792-31.188-98.112-72.772 6.498.974 12.995 1.624 19.818 1.624 9.421 0 18.843-1.3 27.614-3.573-48.081-9.747-84.143-51.98-84.143-102.985v-1.299c13.969 7.797 30.214 12.67 47.431 13.319-28.264-18.843-46.781-51.005-46.781-87.391 0-19.492 5.197-37.36 14.294-52.954 51.655 63.675 129.3 105.258 216.365 109.807-1.624-7.797-2.599-15.918-2.599-24.04 0-57.828 46.782-104.934 104.934-104.934 30.213 0 57.502 12.67 76.67 33.137 23.715-4.548 46.456-13.32 66.599-25.34-7.798 24.366-24.366 44.833-46.132 57.827 21.117-2.273 41.584-8.122 60.426-16.243-14.292 20.791-32.161 39.308-52.628 54.253z"></path></svg>
   <span class="tooltip">@username</span>
</button>
<style>
/* From Uiverse.io by vinodjangid07 - Tags: twitter, button, social media, hover effect */
.Btn {
  width: 45px;
  height: 45px;
  /* border: none; */
  border-radius: 50%;
  background-color: #00acee;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition-duration: .5s;
  box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.137);
  border: 2px solid #bbecff;
}

.logoIcon {
  fill: white;
}

.tooltip {
  position: absolute;
  top: -20px;
  opacity: 0;
  background-color: #00acee;
  color: white;
  padding: 5px 10px;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition-duration: .2s;
  pointer-events: none;
  letter-spacing: 0.5px;
}

.tooltip::before {
  position: absolute;
  content: "";
  width: 10px;
  height: 10px;
  background-color: #00acee;
  background-size: 1000%;
  background-position: center;
  transform: rotate(45deg);
  bottom: -20%;
  transition-duration: .3s;
}

.Btn:hover .tooltip {
  top: -45px;
  opacity: 1;
  transition-duration: .3s;
}

.Btn:hover {
  background-position: right;
  transition-duration: .5s;
}
</style>
